<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title></title>
    <script type="text/javascript">
        //<![CDATA[
        function compare(a, b) {
            if (a < b) {
                alert("A is less than B");
            }
            else {
                alert("SomeThing else!");
            }
        }
        //]]>
    </script>
</head>
<body>
<h1>&lt;is not support in XHTML!,Use the cdada, also support the browser donot support XHTML!</h1>
</body>
</html>